org.assertj.guava.api.ByteSourceAssert Maven / Gradle / Ivy
/**
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* Copyright 2012-2016 the original author or authors.
*/
package org.assertj.guava.api;
import static org.assertj.core.error.ShouldBeEmpty.shouldBeEmpty;
import static org.assertj.core.error.ShouldBeEqual.shouldBeEqual;
import static org.assertj.guava.error.ShouldHaveSize.shouldHaveSize;
import java.io.IOException;
import org.assertj.core.api.AbstractAssert;
import org.assertj.core.internal.Failures;
import org.assertj.core.internal.Objects;
import org.assertj.core.presentation.StandardRepresentation;
import org.assertj.core.util.VisibleForTesting;
import com.google.common.io.ByteSource;
/**
* Assertions for Guava {@link ByteSource}.
*
* @author Andrew Gaul
*/
public class ByteSourceAssert extends AbstractAssert {
@VisibleForTesting
Failures failures = Failures.instance();
protected ByteSourceAssert(ByteSource actual) {
super(actual, ByteSourceAssert.class);
}
/**
* Verifies that the actual {@link ByteSource} contains has the same content as the provided one.
*
* Example :
*
ByteSource actual = ByteSource.wrap(new byte[1]);
* ByteSource other = ByteSource.wrap(new byte[1]);
*
* assertThat(actual).hasSameContentAs(other);
*
* @param other ByteSource to compare against.
* @return this {@link ByteSourceAssert} for assertions chaining.
* @throws IOException if {@link ByteSource#contentEquals} throws one.
* @throws AssertionError if the actual {@link ByteSource} is {@code null}.
* @throws AssertionError if the actual {@link ByteSource} does not contain the same content.
*/
public ByteSourceAssert hasSameContentAs(ByteSource other) throws IOException {
Objects.instance().assertNotNull(info, actual);
if (!actual.contentEquals(other)) throw failures.failure(info, shouldBeEqual(actual, other, new StandardRepresentation()));
return this;
}
/**
* Verifies that the actual {@link ByteSource} is empty.
*
* Example :
*
ByteSource actual = ByteSource.wrap(new byte[0]);
*
* assertThat(actual).isEmpty();
*
* @throws IOException if {@link ByteSource#isEmpty} throws one.
* @throws AssertionError if the actual {@link ByteSource} is {@code null}.
* @throws AssertionError if the actual {@link ByteSource} is not empty.
*/
public void isEmpty() throws IOException {
Objects.instance().assertNotNull(info, actual);
if (!actual.isEmpty()) throw failures.failure(info, shouldBeEmpty(actual));
}
/**
* Verifies that the size of the actual {@link ByteSource} is equal to the given one.
*
* Example :
*
*
ByteSource actual = ByteSource.wrap(new byte[9]);
*
* assertThat(actual).hasSize(9);
*
* @param expectedSize the expected size of actual {@link ByteSource}.
* @return this {@link ByteSourceAssert} for assertions chaining.
* @throws IOException if {@link com.google.common.io.ByteSource#size()} throws one.
* @throws AssertionError if the actual {@link ByteSource} is {@code null}.
* @throws AssertionError if the number of values of the actual {@link ByteSource} is not equal to the given one.
*/
public ByteSourceAssert hasSize(long expectedSize) throws IOException {
Objects.instance().assertNotNull(info, actual);
long sizeOfActual = actual.size();
if (sizeOfActual != expectedSize) throw failures.failure(info, shouldHaveSize(actual, sizeOfActual, expectedSize));
return this;
}
}